AK INDUSTRIES SUMP PIT INSTALLATION INSTRUCTIONS VENT PIPE\@ SUMP PIT COVER al FINISHED FLOOR: INLET PIPING EXCAVATED HOLE CLEAN AGGREGATE LEVEL CONCRETE MR CLEAN AGGREGATE 1) INSPECT ALL MATERIALS & COMPONENTS TO BE CERTAIN NOTHING WAS DAMAGED IN TRANSIT. 2) EXCAVATE A HOLE LARGE ENOUGH FOR THE BASIN AND AT LEAST OF CLEAN AGGREGATE. 3) PREPARE THE BOTTOM OF THE HOLE WITH 6" OF CLEAN AGGREGATE OR A LEVEL CONCRETE PAD. 4) INSTALL THE BASIN IN THE HOLE MAKING CERTAIN IT IS LEVEL AND MEETS GRADE REQUIREMENTS.
